Re: [PATCH 0/2] hwmon: (nct6683) Add fan control support for MSI boards with NCT6687D-R
From: Guenter Roeck
Date: Mon Oct 26 2026 - 15:15:38 EST
On 10/26/26 11:35, Hamza Mahfooz wrote:
On Sun, Oct 04, 2026 at 11:32:48AM -0400, Hamza Mahfooz wrote:
Recent MSI boards (customer ID 0x20d) use an NCT6687D-R, whose fan
control registers differ from the ones used on Mitac boards, the only
boards for which the driver supports fan control so far. In addition,
the system fans of these boards are connected to channels 10-15, whose
duty cycle the driver does not report.
This series adds fan control support for these boards, based on the
register map reverse engineered by the LibreHardwareMonitor project [1],
which uses it on MSI 800-series boards.
Patch 1 reports the duty cycle of the system fans, and patch 2 adds fan
control support for the CPU, pump and system fan headers.
Tested on an MSI PRO B850-P WIFI (MS-7E56, BIOS 2.A93, NCT6687D EC
firmware version 0.0 build 04/18/25), on top of kernel v7.3-rc5. Fan
control is available on pwm1, pwm2 and pwm13 to pwm16 on this board.
[1] https://github.com/LibreHardwareMonitor/LibreHardwareMonitor/pull/2294
Hamza Mahfooz (2):
hwmon: (nct6683) Report the duty cycle of NCT6687D-R system fans
hwmon: (nct6683) Add fan control support for MSI boards with
NCT6687D-R
Documentation/hwmon/nct6683.rst | 17 +++
drivers/hwmon/nct6683.c | 233 +++++++++++++++++++++++++++++++-
2 files changed, 244 insertions(+), 6 deletions(-)
--
2.56.0
Ping?
Sorry, I was out of commission for a while, and I am still digging
through patches. Now applied.
Guenter